pp select 3 isdn remote address call 接続先番号 nat use on nat masquerade on nat masquerade static 1 xxx.xxx.xxx.xxx tcp 4000 nat masquerade static 2 xxx.xxx.xxx.xxx udp 4000 nat masquerade static 3 xxx.xxx.xxx.xxx tcp 6112-6119 nat masquerade static 4 xxx.xxx.xxx.xxx udp 6112-6119 pp auth accept pap pp auth myname hoge hogehoge ppp ipcp ipaddress on pp enable 3